Fastener for trimming material



Nov. 25, 1930. l R. M. PREZ FASTENER FOR TRIMMING MATERIAL Filed Feb.28, 1927 Snug/nto@ aoBEn'r M. PaEz, or LANSING, MIcIiIIGfAN,l AssIeNonTo nEo Moron. CAR coMrANsr,

E LANSING, MICHIGAN, A coaPoEATIoN or MICHIGAN EAsTENEn Eon TRIMMINGMATERIAL' Animation mea February 4asfixia?. serial iwtiviff/qga.`

This 'invention relates to fasteners for trimming material and moreparticularly to means for simplifying, lrendering more eiii-V cient andimproving generally devices of 4this character.. l

The invention, while capable of'many and diversified uses, findsparticular utility in connection with applyintrimming material.

panels'to the doors and odies of motor velo .-hicles or the like.

While many forms of fastening means for trimming materials haveheretofore vbeen used one method which hasbeenquite universallypracticed is that'of screwing or' tacking the panels to the frame of thedoor of vehicles or other supports. Such methods ofy attachmentnecessitate the employment of braid or binding to conceal the heads ofthe fastening elements and. thus involve considao Erable exp/11S@` andtrouble.

One of the primary objectsl of this invention is to simplify the meansfor attaching the trimming material panels and to provide a constructionwherein the fastening means is concealed from view after the anels havebeen secured in place. To this en the inven- 1 tion contemplates theprovision of fastening or clincher strips provided with projections or.prongs and the invention proposes the mounting of these strips-by anymeans such) as screws, rivets, snap fasteners, slots or slides, orspot-welding or the like directly to the 'part of the vehicle bodyrequiringpanels or trimming. The. trimming material panels includebackings formed. of rag board cardboard, composition board or the likewith-.the

trimming material covering one face thereof and folded around the edgesandsecu'red to the rear face of the panel by means of cement,- paste orthe like. With the-fastening strips in place, the panels are secured inposition by forcing the same against the prongs of the fastening stripswhereupon the prongs pierce the folded edges of the trimming materialand upon contact with lthe panel are deformed or deflected to thus bendor clinch the same. As a consequence, the trimming panels are held inplace and` the/fasteningl means rendered invisible. 1 l

The several advantages of the lnventlon aS well-.as thenovel details ofthis construction. will be made more, apparent as this descrip' y when,considered in tion proceeds, especial connection with the 'accompanyingdrawings wherein:

Figure 1 is a fragmentary perspective view partly in section showing myimproved fastening and a trimming panel secured thelby. ,c l

Figure 2 is a fragmentary sectional `view taken substantially on theplane 'indicated by line 2 2 in Figure 1. f

Figure 3 is a sectional /view taken substantially on. the planeindicated by line 3 -3 in Figure l, and

`HFigure 4 is a perspective view ofone of the fasteningstrlps.,

While it will be apparent, as this descr-ip tion proceeds, that lthepresent invention is v'capable of numerous and, diversified uses,nevertheless, for the purpose of illustration I To this support Isecure, as for instance, by

means of screws 1 1, a fastening strip 12 provided with projections -orprongs 13 preferably cut from the material of they body of the strip.These prongs are usually arranged in pairs and are curved or inclinedwith'reference to the face of the strip of the material which theyproject.

backings 14 formed of ragboard, cardboard composition board or the like,one face of which is covered with the trimming material i 15 which isfolded or drawn over the edges of the backing to, provide an edgeor-.border portion 16 which is secured yto the back face of thebacking'14 by means of cement, paste or the'like. f

In mounting the panels of trimmmg'maeoy terial in position each panel isheld in engageagainst the-same by blows from,'for instance,

ment with the fastening strips 12 and forced rubber or wooden malletswhereupon ythey prongs or `projections 13 arecaused tol pierce 75.- theframe ofthe ss The'panels of trimming material comprise the edge portionof the trimming material and to be forced therethrough. However, whenthese prongs contact with the backing 14 they are deformed or deflectedand bent or clinched as illustrated in Figures 2 and 3 to thus securelyhold the panels in place. The deflecting of the/prongs into clinchedposition is facilitated by the curvature or incline of the prongs andobviously after being clinched the ends of the prongs lie between thefolded edge 16 of the trimming material andthe adjacent face of thebacking 14. Thus they are not visible and as a consequence a neat andpermanent mounting for the trimming material panels is produced.

It is obviousthat should it at any time become necessary to remove thetrimming material panels this may be done by insert- Aing a blunt toollike a screw-driver between the panel and the fastening strip whereuponthe prong-s may be pried loose without injury to the panel or trimming.y

Among the outstanding advantages attributed to the present invention isthe absence of any visible fastening means, the simplicity of thefastener which makes its manufacture economically efficient and lastly,the ease and facility with which the panels may be bot h attached anddetached. Obvious modifications will suggest themselves to those skilledin this art and as a consequence reservation is made to make suchchanges in many of the essential and all of.

the non-essential details as may come within the purview of theaccompanying claims.

What I claim as my invention is 1. In a fastener for trimming material,a support, a member provided with prongs, secured to said support and atrimming material panel provided with a backing with the trimmingmaterial extending around ,the back thereof opposite the prongs, sfaidprongs arranged to be forced through said trimmed material and intoengagement with said backing for clamping the trimming material andholding the same upon said backing.

2. In a fastener for trimming material, a trimming material panelincluding a backing with the edge of the trimming material extendingaround and. secured to the rear of said backing and a member providedwith prongs, secured to a support. said prongs being adapted to beforced through said edge of the trimming material and clinched bycontact with said backing. v

3. In combination, a support, a trimming material panel including abacking member arranged adjacent to the support with the edges of the,trimming material `folded over the edges ofthe backing member andsecured to the rear face thereof, securing means 'including prongscarried by the support and adapted to be forced through the trimmingmaterial and clinched by contact with said backing.

' 4. In combination, a support, a trimming material panel including abacking member adjacent to the support with the edges of the trimmingmaterial folded over the edges of the backing member and secured to therear face thereof, securing means carried by the support adjacent thefolded portion of the trimming material, said means including inclinedprongs adapted to be driven through said material and bent to clinchthe.

same by contact with said backing.

5. The combination with a trimming material panel including a backingmember having the edges of the trimming material folded over the edgesof the backing member and secured to the rear face thereof, of securingmeans supported adjacent the folded edge of the trimming material, saidsecuring means including pairs of oppositely inclined prongs adapted topierce the material andbe bent into clinching position by contact withsaid backing.

6. The combination with a trimming material panel including a backingwith trimming material covering one face and secured to the edges of theother face, of securing means supported opposite the last mentionedface, said securing means including a fastener strip provided withdeformable projections adapted to be forced through the trimmingmaterial and deformed by contact with j said backing to clinch the same.

7. In a fastener of the class described, a trimming panel comprising abacking and trimming material covering the same and a fastener supportedadjacent to the backing and provided with means adapted to pass throughand clinch the trimming material upon the forceful engagement of thepanel and fastener.

l 8. In a fastener for trimming material, a panel including a backingmember and trimming material covering one face thereof with the edgesdrawn over the edges of the backing member and secured to the back facethereof, a fastener strip arranged adjacent.

the last mentioned farce and provided with curved prongs projecting fromone face thereof and means for securing said fastener strip to asupport, said pron s arranged to be forced through the edges of thetrimming material and bent by contact with said backing member to clinchthe same against 'said trimming material.

9. In' combination, a support, a backing member adjacent to saidsupport, a trimming material panel having portions folded over the edgesof the backing member and securing means including prongs carried by thesupport and adapted to be forced through the trimming material andclinched by contact with said backing.

10. In a fastener for trimming material, a support, a trimming materialpanel, a backing located in advance of a portion of the:ipx-'ixr'xni'llgmterialfnd securing member" uponv tho support havingprongs adapted to j be forced through said portion of the ,trim-l mingmaterial and to be clinchd by Contact with'snid backing.

` A vIn testimony whereof I aix my signature.l

1 ROBERT M. PREZ.V

